Improvement in paper



2 Sheets-Sheet 1. M. NEWTON. Paper.

No. 212,866. Paiented' Mar; 4,1879.

2 Sheets-Sheet 2.

M. NEWTON.

Paper.

Patented Mar. 4, 1879.

InueIz for:

. Willzesse N:PE!ER$. PHOTO-LITHOGIMFHER. WASHINGTON. D. C

UNITED STATES PATENT OFFIG MOSES NEl/VTON, 0F HOLYOKE, MASSACHUSETTS.

IMPROVEMENT IN PAPER.

Specification forming part of Letters Patent No. 212,866, dated March 4,1879 application filed January 16, 1879.

To all whom it may concern:

Be it known that I, MOSES NEWTON, of Holyoke, in the county of Hampdenand State of Massachusetts, have invented certain Improvements in Paper,of which the following is a specification:

This invention consists of a paper composed of a thick but soft andspongy body, with one or both sides coveredwith a thin and tougherlayer, as hereinafter more fully set forth.

Figure l is a perspective view, and Fig. 2 a transverse sectional view,of a piece of the paper having both sides coated with the thin outerlayer. Figs. 3 and 4 are similar views of the paper having one side onlycoated with the tough out-er layer; and Fig. 5, a side elevation of themachine.

The object of this invention is to produce a cheap paper having a thickbut soft spongy body, with one or both of its surfaces covered by a thinand tough layer, said paper being suitable for carpet-lining, and forwrapping or packing furniture or other polished articles to prevent itfrom being scratched or bruised in transportation, and for similarpurposes.

This paper I make by forming the pulp for the body of any material thatwill form a soft spongy mass when formed into a sheet, and which may becomposed of satiuet rags, jute waste, wood-pulp, and the like, or amixture of similar materials, so as to produce a layer or body somewhatsimilar to blotting-paper, but

more soft and spongy. Upon this I place a thin layer of pulp composed ofa stronger and firmer material-for instance, such as is used for makingManila paper--and this I place upon one or both surfaces of the softspongy body, according as the paper is designed for one or another use.If it be designed for wrapping or packing polished articles, such asfurniture and the like, only one side will be thus coated, asrepresented in Figs. 3 and 4, in which A represents the soft spongylayer or body, while B represents the thin tough layer. If it is to beused as a carpet-lining or for a similar purpose, then both sides willbe provided with the thin tough layer B, as shown in Figs. 1 and 2.

The process of making the paper is as follows: A paper-forming machineis arranged as shown in Fig. 5, with four separate vats,

each provided with a forming roll or cylinder and with a felt arrangedto pass over all the cylinders. The two central vats are supplied withthe pulp for forming the soft body A, while the two end vats aresupplied with the pulp used for forming the thin tough layers for theoutside of the sheet. WVhen the machine is'set in motion alayer'of thetough material will be deposited on the felt by the cylinder G at therear end, and as it passes along the two central cylinders, D and E,will each deposit on this first layer a layer of the soft spongy pulp,and as it passes over the last cylinder, F, that will deposit anotherlayer of the tough material, and thuswill be produced the compound sheethaving the thick soft spongy body A, coated on each side with a thinlayer, B, of the tougher material. If it be desired to coat it on oneside only with the layer B, then the pulp for forming such layer will beomitted from one of the end vats, and the other end vat alone besupplied with the material.

The object of using two vats and formingcylinders in the center forsupplying the soft spongy material is to produce a thicker body of thatmaterial. It is obvious, however, that either more or less than two vatsand cylinders may be used for supplying the material for the body A,depending upon how thick it may be desired to have the body, it thusbeing made thicker or thinner, according to what it is to be used for.In practice, however, I find that two are sufficient to provide a bodythick enough for all ordinary purposes. 7

By thus inclosing the soft spongy material between the two thin layersof tougher material I impart to the sheet sufficient strength andtoughness to enable it to be successfully used where a sheet of the softspongy material alone could not be, and impart to the sheet as a whole afar greater degree of durability than it would have if composed whollyof the soft spongy material; and by coating the sheet on one side onlyit has sufiicient strength and durability to enable it to be usedforavrappin g or packing articles, as described, in which case it isgenerally used but once, and then only for a short time.

It will be seen that by making the paper in the manner described Icombine the qualities of softness or sponginess with that of tough; nessand durability, thus producing an article that is peculiarly adapted foruse as a carpetenabled not only to make the soft spongy body wholly ofpulp and of any desired thickness, but also to make the laminae orlayers of a uniform thickness, each layer presenting substantially aplane surface, so that when they are all brought together to form thefinished sheet it will be of an even or regular. thickmess.

I am aware that a paper has heretofore been made by inclosing a layer ofstrong coarse material between two layers of cotton or linen pulp, thusforming a sheet of uniform density throughout for making paper collarsand cuffs and for cards, the object in such case being simply to cheapenthe product by using a cheaper material in the center, and also that alayer'of paper-pulp has been combined with woven or felted fabrics; andI am also aware that a carpet-lining has been made by inclosin g a lapor layer of raw cotton between two sheets of paper-pulp; but I am notaware that a paper having a soft spongy body composed wholly of paperpulp, of uniform thickness throughout, covered with one or more thinlayers of tough material, also of uniform thickness throughout, such asabove described, has ever before been made in such a manner as I havedescribed, so as to produce a laminated sheet wherein the seyerallaminae are of plane surface, and which surfaces are made to adhere toeach other in the process of manufacture with sufficient tenacity to'unite the whole in a sheet; and, therefore,

Vhat I claim is As a new article of manufacture, a paper having a softspongy body, A, composed of one or more layers of soft spongy pulp,covered on one or both sides with a thin tough'layer, B, substantiallyin the manner and for the purposes described.

MOSES NEWTON. IVitnesses:

J. P. BUOKLAND, M. B. NEwToN.

